Sony Ericsson is to beef up its line of Cyber-shot camera phones with a new five-megapixel model, but you're going to have to wait until nearly Christmas to get your hands on it.

Sony Ericsson's K850: 5Mp snapper

The K850 is set to go on sale early in Q4 - October, basically. When it arrives, it will not only sport that higher-resoution image grabber but also a xenon flash, auto-focus, 16x digital zoom and a 2.2in, 320 x 240, 262,144-colour display. It also has 3G connectivity with HSDPA high-speed download technology. Sony Ericsson claimed the camera can upload at HSDPA speeds too - does it have HSUPA (High Speed Uplink Packet Access) on board? If it does, that's not an abbreviation the company mentioned.

Once again, Sony Ericsson's Best Pic feature - it takes nine shots in rapid succession, as soon as you touch the shutter key; when it's done, you keep the one you prefer - is present, as is the ability to send images directly to a PictBridge printer, and to tweak shots first.

The phone has 40MB of memory on board, backed by a bundled 512MB Memory Stick Micro - aka M2 - card. However, the K850 can also accept Micro SD cards in the same slot. Bluetooth 2.0 is part of package too, and the phone boasts an RDS-capable FM radio.

Sony Ericsson's Z320: cut-price clamshell

Sony Ericsson also showed off its upcoming Z320 clamshell camera phone, a budget model - it's can only take 1.3-magapixel snaps. Like the K850, it has a 2.2in, 320 x 240, 262,144-colour display, but it's only a tri-band GSM/GPRS device. It goes on sale in Q3. It will be offered in a choice of red and blue colour schemes. The K850 will come in black with green or blue styling.